Granted Patent
Utility
US 4,946,524 · App. 07/318,023
Applicator and method for applying dry film solder mask on a board
Inventors:
Robert C. Stumpf, Jose L. Correa, Charles L. Farnum
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: Mar 2, 1989
Inventors
Robert C. Stumpf
Jose L. Correa
Charles L. Farnum
Assignee (at issue)
Morton International, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.